/*
 * Created on Feb 8, 2007
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package com.aelitis.azureus.core.util;

import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;

public class ByteCountedInputStream extends FilterInputStream {
    private long position;
    private long mark;

    public ByteCountedInputStream(InputStream is) {
        super(is);
    }

    public int read()

    throws IOException {
        int read = in.read();

        position += read;

        return (read);
    }

    public int read(byte b[])

    throws IOException {
        int read = read(b, 0, b.length);

        position += read;

        return (read);
    }

    public int read(byte b[], int off, int len)

    throws IOException {
        int read = in.read(b, off, len);

        position += read;

        return (read);
    }

    public long skip(long n)

    throws IOException {
        long skipped = in.skip(n);

        position += skipped;

        return (skipped);
    }

    public synchronized void mark(int readlimit) {
        in.mark(readlimit);

        mark = position;
    }

    public synchronized void reset()

    throws IOException {
        in.reset();

        position = mark;
    }

    public long getPosition() {
        return (position);
    }
}
